Low-glare lighting device having hidden light source

Abstract

A device for the low-glare lighting of a room is disclosed. The device has: a translucent body; a first lighting unit arranged on or in the translucent body, which first lighting unit is adapted to light a surface; and a second lighting unit arranged in the translucent body, which second lighting unit is adapted to light the room through the translucent body.

1 . A device for the low-glare lighting of a room, having:
 a translucent body,   a first lighting unit arranged on or in the translucent body, which first lighting unit is adapted to light a surface, in particular directly,   a second lighting unit arranged in the translucent body, which second lighting unit is adapted to light the room through the translucent body.   
     
     
         2 . The device as claimed in  claim 1 , wherein the first lighting unit has a first hidden light source and the device is devoid of a line of sight between an observer who is in the room and the first hidden light source. 
     
     
         3 . The device as claimed in  claim 1 , further having a longitudinal axis and a transverse axis, wherein:
 the translucent body further has a first opening arranged along the longitudinal axis and extending along the transverse axis,   the first lighting unit arranged in the translucent body is adapted to emit first light via the first opening and to light a surface, and   the second lighting unit arranged in the translucent body is adapted to emit second light and to light the room through the translucent body, wherein the first lighting unit has a first light source that is hidden from an observer who is in the room.   
     
     
         4 . The device as claimed in  claim 3 , wherein the translucent body has at least one further opening, in particular arranged/extending along the longitudinal axis and/or arranged/extending along the transverse axis, wherein there is arranged on or in the translucent body at least one further lighting unit which is adapted to emit third light and to light a further surface via the at least one further opening, wherein the at least one further lighting unit has a second light source that is hidden from an observer who is in the room. 
     
     
         5 . The device as claimed in  claim 3 ,
 wherein there is a line of sight between the observer and the first and/or second hidden light source, wherein a first observation angle has a value between ±90°, in particular between ±60° or ±40°, with respect to the longitudinal axis.   
     
     
         6 . The device as claimed in  claim 3 , wherein the device is devoid of a line of sight between an observer who is in the room and the first and/or second hidden light source. 
     
     
         7 . The device as claimed in  claim 1 , wherein a luminance ratio of a device luminance to a mean room luminance of an area or part of a/the area of the room is less than one, wherein the luminance ratio is determined in relation to an observer who is standing outside a first and/or second observation angle. 
     
     
         8 . The device as claimed in  claim 1 , wherein a luminance ratio of a device luminance to a room luminance is less than one. 
     
     
         9 . The device as claimed in  claim 1 , wherein the first and the at least one further opening are arranged along, in particular on, the longitudinal axis, in particular opposite one another. 
     
     
         10 . The device as claimed in  claim 3 , wherein the first lighting unit and the translucent body are arranged on the longitudinal axis and a light-emitting end of the first lighting unit terminates at, in particular flush with, the first opening of the translucent body, and/or the at least one further lighting unit and the translucent body are arranged on the longitudinal axis and a light-emitting end of the further lighting unit terminates at, in particular flush with, the at least one further opening. 
     
     
         11 . The device as claimed in  claim 1 , wherein a light emission angle at the first and/or the at least one further opening has a value between ±90°, in particular ±60° or ±40°, with respect to a perpendicular to the respective opening plane. 
     
     
         12 . The device as claimed in  claim 1 , wherein the first lighting unit and the further lighting unit can be screwed together and/or the second lighting unit is arranged on the first and/or on the further lighting unit, in particular is connected to the first and/or the further lighting unit. 
     
     
         13 . The device as claimed in  claim 1 , further having:
 a longitudinal axis and a transverse axis,   a second lighting unit arranged in the translucent body, which second lighting unit is adapted to emit second light and to light the room through the translucent body, and   a pedestal unit in contact with a surface, which pedestal unit is adapted to generate first light, to conduct it out of the pedestal unit and to project it onto part of the surface surrounding the pedestal unit.   
     
     
         14 . The device as claimed in  claim 13 , wherein a luminance ratio of a device luminance to a mean room luminance of an area or a mean room luminance of part of a/the area of the room is less than one. 
     
     
         15 . The device as claimed in  claim 14 , wherein a luminance ratio of a device luminance to a mean room luminance of an area or a mean room luminance of part of a/the area of the room is less than or equal to one, wherein the luminance ratio is determined in relation to an observer who is standing outside the part of the surface surrounding the pedestal unit. 
     
     
         16 . The device as claimed in  claim 13 , wherein the pedestal unit has:
 a pedestal body in contact with the surface, in which pedestal body there is arranged, in particular centrally in a light-guiding unit and/or light conductor which has the pedestal body, a first lighting unit which is adapted to emit first light, and   a light-guiding unit arranged at or on the pedestal body, which light-guiding unit is adapted to receive the first light emitted by the first lighting unit and to project it out of the light-guiding unit onto the part of the surface surrounding the pedestal unit.   
     
     
         17 . The device as claimed in  claim 16 , wherein the light-guiding unit is adapted to project the first light onto the part of the surface surrounding the pedestal unit at an angle between ±90°, in particular ±60° or ±40°, with respect to the longitudinal axis. 
     
     
         18 . The device as claimed in  claim 17 , wherein the light-guiding unit has:
 a light conductor, in particular a planar light conductor, which is adapted to receive the first light and to conduct it to a deflection mirror, in particular a curved deflection mirror, wherein the deflection mirror and the light conductor are adapted to project the first light onto the part of the surface surrounding the pedestal unit at an angle between ±90°, in particular ±60° or ±40°, with respect to the longitudinal axis.   
     
     
         19 . A method for the low-glare illumination of a room, comprising the steps:
 providing a translucent body;   providing a first lighting unit arranged on or in the translucent body;   lighting a surface with the first lighting unit;   providing a second lighting unit arranged in the translucent body, which second lighting unit is adapted to emit second light;   lighting the room with the second light through the translucent body.